An electrode precursor sheet in which the active electrode material is bound by a polymer binder that includes an oxidized polymer or a blend of a first polymer with an oxidized polymer additive. The oxidized polymer advantageously has a minimum oxygen content of 1 atom % and may be an oxidized form of the first polymer.

 
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> Spirally-wound non-aqueous secondary battery and electrode plate used therefor

> Positive electrode active material, production method thereof and non-aqueous electrolyte secondary battery
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